Firefighters still fighting a fire which started around 5:00am at the Squat and Gobble restaurant in West Portal in San Francisco, Calif., on Friday, October 12, 2012.

Firefighters still fighting a fire which started around 5:00am at...

Firefighters still fighting a fire which started around 5:00am at... Photo-4521580.60996 - SFGate

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Firefighters fill Haight St. after dousing a large fire on the corner of Haight St. and Fillmore St. in San Francisco, Calif., on Tuesday, Sept. 27, 2011.

Firefighters fill Haight St. after dousing a large fire on the...

Firefighters fill Haight St. after dousing a large fire on the... Photo-4521581.60996 - SFGate

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Firefighters talked after dousing a large fire in a building on the corner of Haight St. and Fillmore St. in San Francisco, Calif., on Tuesday, Sept. 27, 2011.

Firefighters talked after dousing a large fire in a building on the...

Firefighters talked after dousing a large fire in a building on the... Photo-4521582.60996 - SFGate

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Flames and smoke poured out of the windows above Fred\'s Liquor Store on the corner of Duboce and Valencia Streets in the Mission of San Francisco Calif., on the morning of May 6, 2012. Firefighters work to maintain and smother the flames that continued to reignite because of the wind.

Flames and smoke poured out of the windows above Fred\'s Liquor...

Flames and smoke poured out of the windows above Fred\'s... Photo-4521583.60996 - SFGate

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Firefighters from Engine 36 use a hydrant wrench to turn off the main valve of the water supply to a hydrant that had been knocked off it\'s base when it was hit by a truck at Minna and Ninth Streets on Thursday, December 8, 2011 in San Francisco, Calif.

Firefighters from Engine 36 use a hydrant wrench to turn off the...

Firefighters from Engine 36 use a hydrant wrench to turn off the... Photo-4521584.60996 - SFGate

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Firefighters still fighting a fire which started around 5:00am at the Squat and Gobble restaurant in West Portal in San Francisco, Calif., on Friday, October 12, 2012.

Firefighters still fighting a fire which started around 5:00am at...

Firefighters still fighting a fire which started around 5:00am at... Photo-4521585.60996 - SFGate

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Firefighters ending a fire which started around 5:00am at the Squat and Gobble restaurant in West Portal in San Francisco, Calif., on Friday, October 12, 2012. The fire prompted the shutdown of three Muni lines.

Firefighters ending a fire which started around 5:00am at the Squat...

Firefighters ending a fire which started around 5:00am at the Squat... Photo-4521587.60996 - SFGate

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Firefighters ending a fire which started around 5:00am at the Squat and Gobble restaurant in West Portal in San Francisco, Calif., on Friday, October 12, 2012.

Firefighters ending a fire which started around 5:00am at the Squat...

Firefighters ending a fire which started around 5:00am at the Squat... Photo-4521588.60996 - SFGate

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A Firefighter enters a heavily damaged apartment after an overnight fire on Treasure Island killed a 10-year-old girl in San Francisco, Calif. on Saturday, Feb. 16, 2013.

A Firefighter enters a heavily damaged apartment after an overnight...

A Firefighter enters a heavily damaged apartment after an overnight... Photo-4521589.60996 - SFGate

Firefighters work in front of the former Potrero police station, which closed more than 15 years ago, on Tuesday, May 22, 2012 in San Francisco, Calif. A two alarm fire broke out at the former Potrero police station on the corner of Third and 20th Streets on Tuesday afternoon.

Firefighters work in front of the former Potrero police station,...

Firefighters work in front of the former Potrero police station,... Photo-4521592.60996 - SFGate

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Firefighters battle a 3-alarm blaze involving five separate apartment buildings at 23rd and Capp streets in San Francisco, Calif. on Saturday, Dec. 29, 2012. At least one firefighter was injured in the 3-alarm fire, which heavily damaged five separate apartment buildings.

Firefighters work on the stairway of a building on 23rd Street, one of five structures heavily damaged by a 3-alarm blaze near the corner of Capp Street, in San Francisco, Calif. on Saturday, Dec. 29, 2012. At least one firefighter was injured in the fire.

Firefighters work on the stairway of a building on 23rd Street, one...

Firefighters work on the stairway of a building on 23rd Street, one... Photo-4521594.60996 - SFGate

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Firefighters work in a narrow space separating several structures while battling a 3-alarm blaze involving five apartment buildings at 23rd and Capp streets in San Francisco, Calif. on Saturday, Dec. 29, 2012. At least one firefighter was injured in the fire.

Firefighters work in a narrow space separating several structures...

Firefighters work in a narrow space separating several structures... Photo-4521595.60996 - SFGate

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Firefighters Mike Aguilar (left) and Jack Taylor (front right) getting the Guardian ready to head to Pier 80 in San Francisco, California, on Wednesday, December 19, 2012.

Firefighting equipment is ready to roll at Fire Station No. 1 on Folsom Street in San Francisco, Calif. on Wednesday, March 27, 2013. The firehouse, the first built in the city in 40 years, replaces the old one on Howard Street, which is being demolished to make way for the SFMOMA expansion.

Firefighters remove a ladder next door to the San Bruno Avenue Dental Group in San Francisco, Calif. on Wednesday, June 13, 2012, which was heavily damaged by a four-alarm blaze that gutted the two-story structure and an adjacent apartment building on Tuesday.

Firefighters remove a ladder next door to the San Bruno Avenue...

Firefighters remove a ladder next door to the San Bruno Avenue... Photo-4521598.60996 - SFGate